diff --git a/packages/taro/types/index.d.ts b/packages/taro/types/index.d.ts
index 7624209a22f2..206e0118a727 100644
--- a/packages/taro/types/index.d.ts
+++ b/packages/taro/types/index.d.ts
@@ -1,3 +1,5 @@
+import { buffer } from "rxjs/operators";
+
 export = Taro;
 export as namespace Taro;